CN204347118U - Electrification in high voltage numerical monitor and blocking device - Google Patents

Electrification in high voltage numerical monitor and blocking device Download PDF

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Publication number
CN204347118U
CN204347118U CN201420858485.3U CN201420858485U CN204347118U CN 204347118 U CN204347118 U CN 204347118U CN 201420858485 U CN201420858485 U CN 201420858485U CN 204347118 U CN204347118 U CN 204347118U
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China
Prior art keywords
blocking
voltage
electrification
numerical monitor
input protection
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Active
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CN201420858485.3U
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Chinese (zh)
Inventor
黄新波
赵阳
陶晨
朱海涛
廖志军
徐冠华
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Xi'an Jin Power Electrical Co., Ltd.
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Xian Polytechnic University
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Abstract

The utility model electrification in high voltage numerical monitor and blocking device; include the input protection unit be connected with induction pick-up; input protection unit by wire successively with wave filter, signal processing unit and export driver element and be connected; export driver element to be connected with digital display unit, LED display and locking contact respectively by wire, self-test unit is connected between input protection unit and wave filter by wire.The utility model electrification in high voltage numerical monitor and blocking device can be used for pointing out high-tension apparatus charged state, institute's size with voltage consumer relevant to forced blocking, improve the security during operation of switch consumer.

Description

Electrification in high voltage numerical monitor and blocking device
Technical field
The utility model belongs to safety device technical field, is specifically related to a kind of electrification in high voltage numerical monitor and blocking device.
Background technology
Along with the fast development of China, consumer becomes not retrievable important tool in people's life, nowadays the degree of dependence of people to consumer causes the needs of electric energy increasing, this just to the security of power system device and the requirement of stability also more and more higher.Want to guarantee electric system energy safety and stable operation, accurate electric operation will be carried out to various electrical equipment and electric device, the accident caused because of five kinds of pernicious maloperations be prevented.
Said in electric system " five prevent " specifically refer to: prevent by mistake point, falsely close circuit breaker, prevent on-load from drawing, close disconnector, prevent live connection of ground wire (or grounding switch), prevent line with ground from closing disconnector and preventing mistakenly entering charged chamber.Power department always using the work for " five prevent " as one of focus technology transformation project, and HV live displaying and blocking device to be electric system realize " five prevent " function and improve the requisite device of security of system stable operation.
" State Grid Corporation of China prevents electric misoperation Security Administration " that State Grid Corporation of China formulates explicitly points out: cannot meet to the conventional lock-out techniques of use the equipment preventing electric misoperation requirement, as: interconnection, enclosed type electrical equipment etc., matters are taked to install additional the technical measures such as charged display device and are reached and prevent electric misoperation requirement, for the foregoing reasons, research and development are needed badly a kind of safe and can the electrified display interlock apparatus of reliably working.
Utility model content
The purpose of this utility model is to provide a kind of electrification in high voltage numerical monitor and blocking device, can not only be used for pointing out charged state, the size with voltage of high-tension apparatus, can also the relevant consumer of forced blocking, improves security when switch consumer operates.
The technical scheme that the utility model adopts is; electrification in high voltage numerical monitor and blocking device; include the input protection unit be connected with inductosyn; input protection unit by wire successively with filtration module, signal processing unit and export driver element and be connected; export on driver element and be connected to the connection of digital display unit, LED light and locking contact, self-test unit is connected between input protection unit and filtration module by wire.
Feature of the present utility model is also:
Input protection unit is form overvoltage crowbar by TVS pipe and voltage dependent resistor (VDR).
What wave filter adopted is the second-order low-pass filter circuit built based on LM358.
What signal processing unit was selected is M0516 microprocessor.
The beneficial effects of the utility model are:
(1) the utility model electrification in high voltage numerical monitor and blocking device are connected with induction pick-up, are installed on by induction pick-up outside line security distance, are taking under reliable safety practice, generally all carrying out charged installation.
(2) whether the utility model electrification in high voltage numerical monitor and blocking device can have electricity at the outer checkout equipment of charging equipment safe distance, and itself can not produce shelf depreciation, installs and safeguards comparatively simple and convenient.
(3) charged state of high voltage electric equipment and supply line and size with voltage can be monitored, be shown to the utility model electrification in high voltage numerical monitor and blocking device very intuitively, locking contact can also be provided to carry out safety interlocking to corresponding operating mechanism, the form changing sensor can also realize charged display and the locking of different high-tension apparatus, and range of application is wider.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model electrification in high voltage numerical monitor and blocking device;
Fig. 2 is the structural representation that the utility model electrification in high voltage numerical monitor and blocking device are applied in gas-insulated switchgear station;
Fig. 3 is the utility model electrification in high voltage numerical monitor and the blocking device structural representation in outdoor utility.
In figure, 1. induction pick-up, 2. input protection unit, 3. wave filter, 4. signal processing unit, 5. export driver element, 6. digital display unit, 7.LED display screen, 8. locking contact, 9. self-test unit, 10. high voltage bus, 11. cables, 12. switch cubicles.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model electrification in high voltage numerical monitor and blocking device; its structure as shown in Figure 1; include the input protection unit 2 be connected with inductosyn 1; input protection unit 2 by wire successively with filtration module 3, signal processing unit 4 and export driver element 5 and be connected; export driver element 5 to be connected with digital display unit 6, LED light 7 and locking contact 8 respectively, self-test unit 9 is connected between input protection unit 2 and filtration module 3 by wire.
What induction pick-up 1 adopted is capacitance coupling type, its main structure arranges electrode in high-voltage electric field, and be arranged on the certain distance of distance high-voltage bus 10, utilize electrostatic induction be used for produce induced charge, and the signal sensed is sent to the utility model electrification in high voltage numerical monitor and blocking device by cable, induction pick-up 1 is the field coupled principle utilized between high-voltage electric field and sensor, outside safe distance, carry out non-contact detection.
In the use procedure of reality, induction pick-up 1 can be installed according to different equipment, to be passed in the utility model electrification in high voltage numerical monitor and blocking device by the signal that induction pick-up 1 senses process by cable 11; As shown in Figure 2, when for gas-insulated switchgear station (Gas Isolated Switchgare, be called for short GIS) time, directly induction pick-up 1 is positioned near high voltage bus 10 place in switch cubicle 12, then induction pick-up 1 is connected with the input protection unit 2 in the utility model electrification in high voltage numerical monitor and blocking device by cable; As shown in Figure 3; during for outdoor; only induction pick-up 1 need be placed in outdoor high voltage bus 10 place and (make the distance that induction pick-up 1 distance high-voltage bus 10 is certain; this distance sets according to electric pressure), then induction pick-up 1 is connected with the input protection unit 2 in the utility model electrification in high voltage numerical monitor and blocking device by cable 11.
Input protection unit 2 forms overvoltage crowbar by TVS pipe (also known as transient voltage suppressor) and voltage dependent resistor (VDR) (voltage dependent resistor (VDR) is a kind of resistance device with nonlinear wind vibration); Input protection unit 2 will with inductosyn 1 with the use of; The principle of work of inductosyn 1 is based on capacitively coupled signal, and the increase along with frequency increases by the energy of coupling, when high-voltage charged body occurring high frequency transient voltage, can be coupled to stronger signal by inductosyn 1; In order to avoid superpotential damages electronic circuit, need to take to suppress accordingly the measure of overvoltage to carry out the not damaged and distorted signals of ensuring equipment.
What filtration module 3 adopted is the second-order low-pass filter circuit built based on LM358; Filtration module 3 is mainly used in the tetchy high frequency transient signal of elimination induced electricity, higher hamonic wave signal and other clutters, can detect fundamental frequency voltage signal carry out charged display by means of filtering.
What signal processing unit 4 was selected is M0516 microprocessor.Signal processing unit 4 is mainly used in processing to the received signal, namely by amplify and rectification signal transacting to desirable state; By changing large multiple to reach required detection sensitivity when monitoring for the equipment being applied in different occasion.When the consumer that the utility model electrification in high voltage numerical monitor and blocking device will be monitored and residing occasion are determined, its suitable signal amplification factor will be determined; And then adjusted by the threshold value of adjustment to charged display of other amplifiers, namely by regulating adjusting thresholds turn-knob to change enlargement factor, thus change threshold value; Industrial frequency AC signal after amplification, through overcommutation, output signal, for controlling follow-up voltage instruction, the control of charged display threshold.
Digital display unit 6 mainly utilizes the equipment of charactron to monitoring size with voltage to show.
LED light 7, mainly shows the charged state of high voltage bus 10A, B, C three-phase; When equipment under test or circuit charged time, A, B, C three-phase pilot lamp is glittering, and exports forced blocking signal.
Self-test unit 9 is mainly used in the checking function realized the utility model electrification in high voltage numerical monitor and blocking device; The utility model electrification in high voltage numerical monitor and blocking device provide charged self-inspection and without electric self-inspection two kinds of self-checking functions, so that whether verifying attachment is working properly at any time, specific as follows:
Charged self-inspection: when high-tension line or high-tension apparatus reality not charged time, display controller can be checked whether can normally to show when electrification in high voltage.
Without electric self-inspection: when high-tension line or high-tension apparatus are actual charged, display controller can be checked whether can normally to show without during electricity at high pressure.
The utility model electrification in high voltage numerical monitor and blocking device are connected with inductosyn 1, utilize the field coupled principle between high-voltage electric field and sensor, outside safe distance, carry out non-contact detection by inductosyn 1; Stray capacitance between induction electrode and high-voltage charged body can alternating voltage signal on coupled high voltage alive body, this alternating voltage signal is sent in high-voltage electriferous display locking device by cable and processes, high-voltage electriferous display locking device is for run working method continuously, there is flash of light display and self-checking function, and forced blocking signal can be exported, finally realize HV live displaying and lock-in control.
The utility model electrification in high voltage numerical monitor and blocking device can not only be used for prompting high-tension apparatus charged state, size with voltage, can also the relevant consumer of forced blocking, improve security when switch consumer operates.

Claims (4)

1. electrification in high voltage numerical monitor and blocking device, it is characterized in that, include the input protection unit (2) be connected with induction pick-up (1), described input protection unit (2) by wire successively with wave filter (3), signal processing unit (4) and output driver element (5) connect, described output driver element (5) is respectively by wire and digital display unit (6), LED display (7) and locking contact (8) connect, self-test unit (9) is connected between input protection unit (2) and wave filter (3) by wire.
2. electrification in high voltage numerical monitor according to claim 1 and blocking device, is characterized in that, described input protection unit (2) is form overvoltage crowbar by TVS pipe and voltage dependent resistor (VDR).
3. electrification in high voltage numerical monitor according to claim 1 and blocking device, is characterized in that, what described wave filter (3) adopted is the second-order low-pass filter circuit built based on LM358.
4. electrification in high voltage numerical monitor according to claim 1 and blocking device, is characterized in that, what described signal processing unit (4) was selected is M0516 microprocessor.
CN201420858485.3U 2014-12-30 2014-12-30 Electrification in high voltage numerical monitor and blocking device Active CN204347118U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105375637A (en) * 2015-12-04 2016-03-02 重庆臻远电气有限公司 Lightning protection high-voltage live-line digital display and blocking apparatus
CN105429296A (en) * 2015-12-04 2016-03-23 重庆臻远电气有限公司 Lightning-proof high-voltage live digital displaying and locking device
CN106154015A (en) * 2016-08-10 2016-11-23 国网江苏省电力公司南通供电公司 Distributed power source circuit middle-placed switch cabinet miniaturized circuitry voltage collecting device
CN107703399A (en) * 2017-07-25 2018-02-16 国网江苏省电力公司南通供电公司 High voltage display device
CN109030918A (en) * 2018-08-20 2018-12-18 江苏邦泰电气有限公司 A kind of HV live displaying locking system
CN109449908A (en) * 2018-12-12 2019-03-08 武汉泰可电气股份有限公司 Lightening surge preventing HV live displaying nuclear phase blocking device and system
WO2019174075A1 (en) * 2018-03-16 2019-09-19 镇江华源晋昌电器有限公司 Direct current high-voltage live display locking device
CN111610347A (en) * 2020-05-19 2020-09-01 国家电网有限公司 Bus loop resistance wiring device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105375637A (en) * 2015-12-04 2016-03-02 重庆臻远电气有限公司 Lightning protection high-voltage live-line digital display and blocking apparatus
CN105429296A (en) * 2015-12-04 2016-03-23 重庆臻远电气有限公司 Lightning-proof high-voltage live digital displaying and locking device
CN106154015A (en) * 2016-08-10 2016-11-23 国网江苏省电力公司南通供电公司 Distributed power source circuit middle-placed switch cabinet miniaturized circuitry voltage collecting device
CN107703399A (en) * 2017-07-25 2018-02-16 国网江苏省电力公司南通供电公司 High voltage display device
WO2019174075A1 (en) * 2018-03-16 2019-09-19 镇江华源晋昌电器有限公司 Direct current high-voltage live display locking device
CN109030918A (en) * 2018-08-20 2018-12-18 江苏邦泰电气有限公司 A kind of HV live displaying locking system
CN109449908A (en) * 2018-12-12 2019-03-08 武汉泰可电气股份有限公司 Lightening surge preventing HV live displaying nuclear phase blocking device and system
CN111610347A (en) * 2020-05-19 2020-09-01 国家电网有限公司 Bus loop resistance wiring device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data
CB03 Change of inventor or designer information

Inventor after: Huang Xinbo

Inventor after: Zhao Yang

Inventor after: Tao Chen

Inventor after: Zhu Haitao

Inventor after: Liao Zhijun

Inventor after: Xu Guanhua

Inventor after: Wang Xiaojing

Inventor before: Huang Xinbo

Inventor before: Zhao Yang

Inventor before: Tao Chen

Inventor before: Zhu Haitao

Inventor before: Liao Zhijun

Inventor before: Xu Guanhua

TR01 Transfer of patent right

Effective date of registration: 20160120

Address after: 710075 Shaanxi city of Xi'an province high tech Zone Fenghui Road No. 20 Huajing Business Plaza, block B No. 11301

Patentee after: Xi'an Jin Power Electrical Co., Ltd.

Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 19

Patentee before: Xi'an Engineering Univ.